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Relationship of the atmosphere and ionosphere. The ionosphere (/ aɪ ˈ ɒ n ə ˌ s f ɪər /) [1] [2] is the ionized part of the upper atmosphere of Earth, from about 48 km (30 mi) to 965 km (600 mi) above sea level, [3] a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar ...
Balloons cannot reach it because the air is too thin, but satellites cannot orbit there because the air is too thick. Hence, most experiments on the ionosphere give only small pieces of information. HAARP approaches the study of the ionosphere by following in the footsteps of an ionospheric heater called EISCAT near Tromsø, Norway. There ...
The constellation is a joint U.S.-Taiwanese project with major participants including the University Corporation for Atmospheric Research (UCAR), the National Science Foundation, the Naval Research Laboratory (NRL), the Air Force Research Laboratory (AFRL), SRI International on the U.S. side and the National Space Organization (NSPO) on the ...
The observatory also includes a smaller radio telescope, a LIDAR facility, and a visitor center, which remained operational after the telescope's collapse. [ 4 ] [ 5 ] The asteroid 4337 Arecibo is named after the observatory by Steven J. Ostro , in recognition of the observatory's contributions to the characterization of Solar System bodies.
Four US presidents flew aboard the Air Force One plane known as SAM 970. SAM (Special Air Missions) 970, a US Air Force jet plane, in 1974. Fox Photos/Hulton Archive/Getty Images
The Ionospheric Occultation Experiment (IOX) was a remote sensing satellite package that used [when?] a dual frequency Global Positioning System (GPS) receiver to measure properties of the ionosphere. [1]
The president has no shortage of transit options, from Air Force One and Marine One to Cadillac One. Now meet the most recent addition to the fleet. Meet Ground Force One, the president's $1.1 ...
Accenture plc (NYSE:ACN) shares are trading marginally higher on Tuesday. In a press release, the company announced that Accenture Federal Services has received a Task Order worth up to $1.6 ...